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首页> 外文期刊>Food Science and Biotechnology >Solvent and solvent to sample ratio as main parameters in the microwave-assisted extraction of polyphenolic compounds from apple pomace
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Solvent and solvent to sample ratio as main parameters in the microwave-assisted extraction of polyphenolic compounds from apple pomace

机译：微波辅助提取苹果渣中多酚类化合物中溶剂和样品的比例为主要参数

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Microwave-assisted extraction (MAE) in the presence of ethanol and water as solvents was applied as a modern technique to extract polyphenolic compounds from apple pomace and the results were compared to those of Soxhlet extraction and maceration. Various experimental conditions such as microwave power, extraction time, type of solvent, and solvent to sample ratio were considered for the study. Increasing microwave power (from 90 to 360 W) resulted in lower extraction yields. Ethanol-water (at the ratio of 65 to 35) was the best solvent for MAE. However, for the sake of higher water contribution in the extraction, a ratio of 35:65 (ethanol:water) can be selected for a recovery of −90% at a shorter extraction time. The best solvent to sample ratio was found at 20 to 1 level. When used for the extraction of polyphenolic compounds from apple pomace, MAE was faster than maceration and Soxhlet methods.
机译：在乙醇和水为溶剂的情况下，微波辅助萃取（MAE）被用作现代技术从苹果渣中提取多酚类化合物，并将结果与​​索氏提取和浸软法进行了比较。研究中考虑了各种实验条件，例如微波功率，萃取时间，溶剂类型以及溶剂与样品的比例。微波功率的增加（从90 W到360 W）导致提取率降低。乙醇-水（比例为65:35）是MAE的最佳溶剂。但是，为了在萃取中贡献更多的水，可以选择35:65（乙醇：水）的比例，以在较短的萃取时间下获得-90％的回收率。发现最佳的溶剂与样品比率为20：1。当用于从苹果渣中提取多酚类化合物时，MAE比浸渍和索氏提取法要快。

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